A classy looking, pocketable little pen. I own this pen colour in the M800 model as well.
Today is this nib’s second time in use. I bought this M405 Rhodium plated nib to use with my M205 pens instead of their steel nibs.
I am not sure what connection Mozart had with the colour brown or for that matter what any of the composers had with the Diamine Music Inks that bare their name. Mozart is an excellent looking brown at the redder end of the scale. It shades well (but all brown inks shade), but I cannot see any sheen at all. (Do brown inks sheen?)